Voraga, Ravenous Pit Dweller

Flying, trample
As you cast this spell, you may sacrifice a demon.
If you sacrificed a demon as you cast this spell, search your library for all copies of Voraga, Ravenous Pit Dweller, put them onto the battlefield, then shuffle your library. Copies of Voraga, Ravenous Pit Dweller that enter the battlefield from a library are not legendary.